Stop-motion for winding and like machines



April 5 D. G. SOUSSLOFF ETAL 2,743,063

STOP-MOTION FOR WINDING AND THE LIKE MACHINES 4 Sheets-Sheet 1 FiledNov. 12, 1952 [laden iors: JZDZ imj 12 G. So usslal)" a" mo nd V Tubafllfiorn 'eys.

April 24, 1956 D SOUSSLOFF ETAL 2,743,063

STOP-MOTION FOR WINDING AND THE LIKE MACHINES Filed Nov. 12, 1952 4Sheets-Sheet 2 In den bar's: Dimitri GLSo ass laff a Ra ymond VTal'a w gvwa flli'orn e ys.

April 1956 D. G. SOUSSLOFF ETAL 2,743,063

STOP-MOTION FOR WINDING AND THE LIKE MACHINES Filed Nov. 12, 1952 4Sheets-Sheet 3 In lien bars: Rfljmjlr/ 615 51 88101? M a mozzd al'a Byflit orn e ys.

April 1955 D. G. SOUSSLOFF ETAL 2,743,063

STOP-MOTION FOR WINDING AND THE LIKE MACHINES Filed Nov. 12, 1952 4Sheets-Sheet 4 Qimjici GSoussloff MERa mond VTaZa 5y fll-born e ys.

United States Patent STOP-MOTION non WINDING AND LIKE V MACHINESApplication November 12, 1952, Serial No. 320,065

13 Claims. (Cl. 242-37) :This invention consists in an improvedstop-motion de vice for winding machines, twisting machines and, liketextile apparatus embodying means for packaging yarn,-

thread and similar filamentary materials.

In the present specification and claims the term yarn is used in ageneral sense to indicate all types of attenuated material and the termpackage is intended to designate the wound mass of material whatever itsform or dimensions.

One object of the invention is to provide a stop-motion device forarresting the operation of the machine when the yarn breaks or itssupply is exhausted, and particularly to relieve the yarn strand ofundue pressure tending to increase the tension therein.

Another object is to provide in a device of the type indicated meansengageable with the running yarn strand and adapted when released toactuate the stopping means of the machine, with the yarn-engaging meansso balanced as to apply only very slight pressure on the strand withoumaterially augmenting the tension therein.

Another object is to provide a device of the type indicated having apivoted breakage-lever, so-called, statically balanced to adapt it toapply only a minimum of pressure on the yarn yet capable of promptaction for operating the stopping means of the machine. H

Another object is to provide in a machine in which the package is drivenby peripheral contact with a rotary driving drum, means actuated byrelease of the breakage-lever to raise the package off from the drum toarrest its rotation.

Another object is to provide a stop-motion device for arresting theoperation of the machine when the yarn being wound breaks or its supplyis exhausted provided with a resetting mechanism which automaticallyplaces the device in operative condition following each operating cycle.

Further objects of the invention are to simplify and improve theconstruction and arrangement of the stop-motion device while renderingit economical to manufacture and proof against derangement or gettingout of order.

The present invention is herein illustrated as applied to use on atwisting machine in which the twisted yarn or thread is wound on abobbin, spool or other supporting core with the package driven bysurface contact with a rotating drum. It is to be understood,howeventhat the device may be applied to other types of machines inwhich yarn or thread is wound into a package, all within the pur view ofthe present invention. y

In the accompanying drawings:

Fig. 1 is a side elevational view of the present stopmotion deviceapplied to the winding mechanism of a twisting machine and showing it asarranged for winding a package on a tubular core mounted on a rotatablecopholder supported by a hinged arm to adapt the axis of the package torecede from the driving-drum with the increase in diameter of thewinding mass;

Fig. 2 is a plan view of the deviceshown in Fig. 1;

Fig. 3 is a view illustrating the device with the packagecore orcop-tube in contact with the driving drum and the stopping means engagedfor raising the cop-holder off the drum;

Fig. 4 shows the stopping means engaged and the copholder raised awayfrom the'driving drum by the pivotal motion of its supporting arm asactuated by the stopping means;

Fig. 5 is a view showing the cop-holder raised from the drum with itssupporting arm locked in elevated position and illustrating the stoppingmeans as released;

Fig. 6 is a sectional detailed view of the detent-means for locking thepackage-supporting arm in raised position showing it before it isengaged; and i Fig. 7 is a similar view showing the detent-means engagedto hold the package-supporting arm elevated With the cop-holder raisedabove the driving drum.

The present stop-motion or control device may be constructed with itsparts assembled as a unit for attachment to winding and like textilemachines. As herein illustrated, by way of example, the operating partsof the device are mounted on a bearing-member or bracket 2 which may beattached to any suitable support in the framework of the machine towhich it is applied. Thebearing-member 2 is provided with projectinglugs 3 at its sides formed with slots 4, see Figs. 2 and 3, throughwhich bolts 5 may be inserted for attaching the member to a part of theframe of the machine, such, for example, as the horizontal crossbar 10.Preferably the member 2 is provided with projecting lugs 6 at the topadapted to seat on the top of the bar 10. Screws 7 in the lugs 6 may beemployed to leveling the bearing-member 2. Nuts 11 screwed onto the endsof the bolts 5 bind against washers 12 abutting the inner face of thebar to fasten the bearingmember 2 fixedly thereto. The bearing-member orbracket 2 may be of skeleton structure with bifurcated portions at topand bottom curving forwardly therefrom in the form of arms forsupporting apair of integral bosses or hubs 13.

The hubs 13 are bored to receive bushings 14 in which is journaled amain shaft 15 serving as the pivoted support for the bobbin-hanger,so-called, consisting in an arm 16 carrying a horizontal spindle 17. Inother instances a pair of arms may be mounted on the shaft 15 withsuitable bearings at their ends for receiving the gudgeons of a spool onwhich the package is to be wound. v

in the present form of bobbin-hanger a single arm 16 carrying thespindle 17 is used for supporting the bobbin or package, its inner endbeing constructed with a hub 21 secured fast to the end of the shaft 15by a pin 22 shown in Fig. 3, or other suitable means. The arm 16 isherein illustrated as of part-skeleton construction to reduce theweight, with its outer end bifurcated and projecting downwardly at anangle. Hinged between the bifurcations 24 at the end of the arm 16 is ablock-like bearing-member 25 in which is fixedly mounted the end of thespindle i7 fcrrotatably mounting a copholder 26, indicated bydotted-lines in Fig. 2, on which may be held a tubular paper core C.This form of construction for mounting the cop-tube holder 26 is wellknown to those versed in the present art and therefore not herein shownand described in detail. Sufiice it to state that the cop-tube holder 26is journaled for rotation on the dead spindle l7 and secured from axialmovement by suitable means incorporating a screw 27 at the end of thespindle. Usually expansion means are provided on the holder 26 forclamping the tube C thereto to secure it rotatably therewith. As hereinillustrated, the inner end of the holder 26 is provided with a circularflange 29' against which the end of the cop-tube C abuts when in placeon the holder. 1 p

As previously stated, the package is driven by peripheral contact with adriving drum, a usual practice in machines of the present type, the drum30 being mounted fast on a horizontal shaft 31 journaled in suitablebearings, indicated at 32 in Fig. l, and forming a part of the frame ofthe Winding or other machine on which the device is used. Extendinghorizontally at the front of the drum 30 is a traverse-bar 33 slidablymounted in bearings on the machine frame and carrying a rearwardlyprojecting thread-guide 35 having a slot 36 at its forward end throughwhich the yarn feeds to the winding package. The traverse-bar 33 may bereciprocated by any usual means such as a cylindrical cam at the headend of the machine. As this part of the machine is of conventionaldesign and forms no part of the present invention it requires no furtherdetailed description herein. It is to be noted, however, that ahorizontal rod 37 is arranged in advance of the thread-guide 35 to adaptthe strand of yarn to draw thereacross as it feeds to the guide 35 anddelivers to the package being wound, the rod 37 being fixedly held insuitable bearings on the machine frame.

Machines of the present type are usually provided with a rock-shaft suchas shown in the present drawings and designated 39. In the present formof construction the rock-shaft 39 carries a rocker-element 40 having abifurcated hub clamped to the shaft 39 by means of a bolt 41 and nut 42.The rocker-element 40 has an arm 43 projecting forwardly from the shaft39 and formed at its end with a laterally-extending lug 45 which ispointed or V-shaped in side view to adapt it to engage the hooked end ofa pendent pawl-like member 46. The hooked pawl or member 46 is mountedfast on a small horizontal shaft 50, a flat-sided bushing 51 beingsecured in a corresponding hole in the hub of said member, see Fig. 6,and having its bore flatted at 52 to engage the fiatted side of theshaft. The pawl 46 has a spring 47 surrounding its hub with one leg 48reaching downwardly and secured by any suitable means to an ear 49 onthe side of the pawl; its opposite leg being adapted to be brought tobear against the top of aweb portion of the bracket 2, see Fig. 4, toload said spring when the arm 16 is in its raised position.

The outer end of the shaft 50 is journaled in a lug 53 projecting fromthe rearward side of the hub 21 on the package-carrying arm 16, seeFigs. 1 and 2, with its opposite end extending through bearing bores inthe bifurcations 54 of a collar-like member 55 secured fast on the shaft15 which carries the arm 16. The member 55 is generally of cylindricalform with its ends abutting the sides of the hubs 13 on thebearing-member 2 and secured fast to the shaft 15 by a pin 56. Thecollat-member 55 is thus caused to rotate with the shaft 15, beingconstituted as a detent-element for locking the shaft when the latter isturned to swing the arm 16 upwardly in raising the cop-holder 26 abovethe driving drum 30. For this purpose the member 55 is formed with aprojecting shoulder 57 on its under side which is engageable by adetent-pawl 58, see Fig. 7, carried by a rockable shaft 60. Thedetent-pawl 58 is secured fast to the shaft 60 by a pin 61 to adapt itto turn with the latter. The shaft 60 is rockably mounted in the boresof bosses 62 and 63 on the arms of the main bearing member or bracket 2,its outer end being bent around at right-angles to provide a crank-arm64 for rocking the shaft to release the pawl 58 in the manner and forthe purpose later explained.

Referring to Figs. 6 and 7, the detent-pawl 58 carries a substantiallyflat leaf-spring 65 overlying its upper face and held in place by adown-turned flange 66 abutting the side of the pawl and encircling theshaft 60. The free end of the spring 65 bears against the web 67 whichconnects the two arms supporting the hubs 13 of the bearing-bracket 2,thereby exerting a resilient pressure tending to rock the pawl 58 toengage its end with the shoulder 57 on the collar-member 55 as shown inFig. 7.

The breakage-lever 70 which is adapted to be released, upon breakage ofthe'yarn or exhaustion of its supply, to initiate.theoperation-ofthestopping means is mounted fast on the end of the shaft 50 whereby tocause it to rock said shaft to throw the pawl 46 into position to beengaged by the rocker-arm 43. As herein shown, the lever 70, see Figs. 1and 2, is constructed of light-weight fiat bar-stock with its rearward,substantially upright portion fastened to a split hub 71 secured fast tothe shaft 50 by a screw 72 extending through the bifurcated portions ofthe hub and clamped by a nut 73 on the threaded end of the screw. Thenut 73 is set up against a small plate 74 which binds the uprightportion of the lever '70 in a slot in the side of the hub 71, see Fig.3. The lever 75) extends forwardly from its upright portion in a longarm 75 which is bent at an angle at 76 and then extended forwardly at 77with a wire bail 80 riveted to the end thereof. As shown in Figs. 1 and2, the wire bail 80 has a flattened portion 81 fastened to the underside of the lever 70 by rivets 82 with the wire curled around andextending laterally at the front in a horizontal portion 83 with whichthe yarn strand y is adapted to engage as it feeds across the fixed rod37 and thence to the threadguide 35. The lever 70 has arearwardly-extending tailportion or short arm 84 on which is mounted aweight 85 of considerable mass for balancing the long arm 75 of thelever.

The weight 85 is provided with a slot 86 through which the end of thetail-portion 84 of the lever 70 projects with a set-screw 87 engaging aclamping strip or shoe 88 for binding the weight in adjusted position onthe lever. It will thus be seen that the breakage-lever 70 is pivotallymounted in the lug or extension 53 which projects from the rearward sideof the hub 21 on the package-carrying arm 16, the weight 85 on the shortarm of the lever being employed .for balancing its longer arm which isengaged by the running strand of yarn. The upward swinging movement ofthe breakage-lever 70 is controlled by an upstanding guiding member 90clamped to a horizontal bar 91 supported on the frame of the machine atthe front of the drum 30, see Fig. 1. The lower portion of the member 90is formed of bifurcations 92 and 93 clamped against the bar 91 by a bolt94 and nut 95. The upstanding portion of the member 90 is formed with aslot 89 through which the forward inclined portion of the lever 70passes, the slot being closed at the top to limit the upward swingingmotion of the lever.

Overlying the top and side of the paekage-carryingarm 16 is asheet-metal lever 96 having hinge-ears 97 and 98, see Fig.2, straddlingthe sides of the hub 21 and formed with circular apertures for pivotingit on the shaft 15. The lever 96 is formed at its forward end with anupwardly and .reversely curved finger-piece 99 by which it maybe rocked.upwardly manually by pivoting it on the shaft 15. Aleaf-spring 100riveted to the under side of the top of the lever 96 at its rearward endprojects rearwardly therefrom in an arcuate portion bearing on the topof the lug 53 on the arm 16 for resiliently resisting the upwardswinging movement of the lever 96, see Figs. 1, 2 and 3. The upwardswinging movement of the lever 96 is positively limited by an adjustablestud threaded through a washer 106 overlying the top of an car 107 bentinwardly from the side of the lever, see Figs. 1 and 5, the end of 'thestud .being adapted to engage against the upper wall of .the arm 16within a rectangular opening 108. A nut :11!) on the stud 105 is set upagainst the under side of the ear 107 to lock the stud in its adjustedrelationship.

The rearward .inner bearing ear 98 on the lever 96 is formedwith aright-angular bent portion or finger 111, see Figs. 2 and 5, adapted tostrike against the rightangular crank-arm 64 at the end of the shaft 60for rocking said shaft to release the detent-pawl 58 from the shoulder57 on the collar or latchingmember 55. Such release is effected bymanually raising the lever 96 as represented in Fig. 'ScWhereby topermit the arm 16 to.be lowered for placing .the cop-holder 26 or thepackage wound'tlrereon in.driving contact with the drum '30. To

limit the downward movement of the arm 16 a stop-screw 115, see Figs. 5and 6, may be threaded through a boss 116 on the top of thebearing-member 2 in position for its end to engage one of thebifurcations 54 on the collar 55 which is fast on the shaft 50 carryingthe arm 16. A nut 117 threaded onto the stud 105 is set up against theboss 116 to lock thestud in its adjusted relationship.

The construction and arrangement of the various elements of the presentstop-motion orcontrol device having been described in detail, the methodof its operation is explained as follows.

Assuming that the winding operation has been arrestedwith thepackage-carrying arm 16 raised into the position shown in Fig. 4 andheld by the locking means, the wound package may be removed: with itscore or tube C and a fresh tube placed on the holder 26. To return thepackage-holder to winding position the operator may lift the lever 96 bymeans of its finger-piece 99, see Fig. 5', thereby pivoting it on theshaft 15 to cause its finger 111 to engage the crank-arm 64 and rock theshaft 60. The shaft 60 will thus rock the detent-pawl 58 to release itfrom the locking shoulder 57 on the collar or locking member 55.Consequently, the shaft 15 will be permitted to turn'and swing the arm16 downwardly for placing the periphery of the cop-tube C in drivingcontact with the drum 30. Fig. 5 illustrates the lever 96 as having beenraised to release the pawl 58 from the locking collar 55, but stillbeing held forjlowering the arm' 16 gradually in placing the cop-holder26 on the drum 3! Previously, the pawl 46 has been released from the lug45 on the rocker-arm 43 due to the continuous oscillation of the latterand the shaft 50 will have been partially rotated by the spring 47 tolower the breakage-lever 70 to its normal running position and to swingthe pawl 46 rearwardly out of the path of the lug 45.

The yarn y or other filamentary strand is drawn off from its supply,usually arranged below, carried upwardly across the bail 83 on thelever70, thence above the rod 37 and its end attached to the cop-tube C tocause it to wind thereon as the tube contacts with the drum 30. Thethread-guide 35 may be of the self-threading type to pick up the'strandin its slot 36 as it crosses thereunder. Winding of the package on thecop-tube C will therefore be continued with the strand deposited'incrossing turns building up in superimposed layers. As the windingpackage increases in diameter the cop-holder 26 Will be gradually forcedupwardly with the supporting arm 16 pivoting about the axis of the shaft15 to which it is fixedly secured.

During the winding operation the breakage-lever 70 will bemaintained inits lowermost position as shown in Fig. l by the strand of yarn ydrawing across'the bail 83 and over the rod 37 to the thread-guide 35.It will be understood that the weight 85 is initially adjustedlongitudinally of the short arm 84 of the lever 70 to bal-' ance itslong arm 75 so that the bail 83 exerts very slight pressure against thefeeding yarn. In this way the tension on the strand is not augmented toany considerable degree, a most important consideration in winding fine,gossamer filaments such as synthetic yarns. The breakagelever 70 remainsdepressed unless the strand breaks or its supply is exhausted when thebail 83 will be released. Upon release of the yarn from the bail 83 onthe lever 70 the latterwill be swung upwardly by the weight 85 on thearm 84, thereby rotating the shaft 50 to which the hub of the pawl 46 isfixedly secured. Rotation of the shaft 50 will rock the pawl 46forwardly into the position illustrated in Fig. 4 to cause it to beengaged by the lug on the arm 43 of the rocker-element 40. Downwardoscillation of the rocker-arm '43 will thus act to pull down on the pawl46 and thereby draw the shaft 50 down to turn the shaft 15,clockwise asviewed in Fig. 3. This acts to pivot the arm 16 and'lift the cop-holder26 above the drum 30 as shown in Fig. 4. The downward movement of theshaft 50 also brings the free end of the spring 47 into engagement withthe top of the web pertion 67 of the bracket 2 to load said spring.During the raising of the arm 16 as above explained, the shoulder 57 onthe lockingmember 55 will be turned into position to be engaged bythe-.detent-pawl 58 under the tension of its spring 65, asshown in Fig.7, whereby to lock the arm 16 in its elevated relationship. It will beunderstood that the rocker-element 40 is oscillated continuously duringthe operation of the machine and consequently the lug 45 on the arm 43will be released from engagement with the pawl 46 by the upward motionof said lug immediately the arm 16 has been locked in elevatedrelationship. Immediately upon the release of the pawl 46 by the lug 45the spring 47 acts upon the shaft 50 to rotate said shaft in acounterclockwise direction, as viewed in Fig. 4,.t0 swing the pawl 46rearwardly out of the path of the lug 45 and lower the breakage-lever 70to the normal winding position.

After the broken strand has been pieced up or a fresh end supplied tothe winding mechanism the arm 16 may be lowered in the manner previouslyexplained by first lifting the lever 96 to release the detent-pawl 58,thereby returning the winding package into peripheral contact with thedriving drum 30. It will therefore be seen that no manual operation isrequired of the operator to reset the stop-motion, the pieced-up orfresh strand of yarn, due to its contact with the bail 83, acting tomaintain the breakage-lever 70 in its lowered position and retain thepawl 46 out of the path of the lug 45.

It will be observed from the foregoing specification that the presentinvention provides a novel and improved stop-motion or control devicefor use with the winding mechanism of various types of machines. Theoperating elements of the device may be assembled as a unit forattachment to a part of the frame of such a machine; the mechanism beingsimple in construction, compact in size, and practically proof againstderangement or getting out of order.v

While the device is herein described and illustrated as applied to awinding mechanism in which the winding package is supported on a singlepivoted arm, the mechanism may be used with double-armed bobbin-hangersor cradles designed for rotatably mounting diiferent kinds ofpackage-holders such as spools and the like. Various other changes maybe made in the construction and arrangement of the parts of the devicewithout departing from the scope of the invention as expressed in thefollowpivot the bobbin-hanger and raise the package, a pivoted Ibreakage-lever normally held inactive by the yarn feeding to thepackage, means connecting said breakage-lever to move the pawl intoposition to be engaged by said rockerelenient upon release of said leverfrom the yarn, normally deenergized resilient means for returningsaidpawl to position out of the range of action of said rocker-element andfor returning the breakage-lever to initial position after the raisingof the package from the driving drum, and means actuated by the pawlduring its movement into posi tion for engagement with therocker-element for energizing said resilient means.

2. In a winding mechanism embodying a rotary driving drum and arotatable cop-holder, a bobbin-hanger for supporting said cop-holder, arockable shaft on which said bobbin-hanger is fixedly mounted at one endto adapt said cop-holder. to swing away from the driving drum duringthegrowth in the winding, a second shaft rockably' bobbin-hanger, abreakage-lever having its end fixed to said second shaft with an armextending forwardly therefrom for engagement with the yarnrfeeding tothe package being wound on the cop-holder, a hooked member fast on saidsecond shaft to adapt it to be rocked by movement of said breakage-leverupon its release by failure of the feeding yarn, and a continuouslyoscillated rocker-element having means engageable with said hookedmember to draw it down and rock the first shaft to pivot thebobbinhanger upwardly for raising the cop-holder above the driving drum.

3. in a winding mechanism embodying a rotary driving drum and arotatable cop-holder, a bobbin-hanger for supporting said cop-holderwith the package wound thereon in contact with the periphery of saiddriving drum, means for pivotally mounting said bobbin-hanger to adaptthe cop-holder to recede from the driving drum during the growth in thepackage wound thereon, a member movable by and with the pivotingmovement of said bobbin-hanger on the opposite side of its pivot fromthe cop-holder, a hooked pawl rockably suspended from said member, abreakage-lever having its end connected to said tooked pawl to adapt itto rock the latter, said breakagelever extending forwardly therefrominto position for engaging the yarn feeding to a package wound on thecopholder, a continuously-oscillated rocker-shaft, and a hooked elementon said rocker-shaft engageable with the hook on said pawl to draw itdownwardly and raise the bobbin-hanger for moving the cop-holder awayfrom the driving drum.

4. In a winding mechanism embodying a rotary driving drum and a pivotedbobbin-hanger for supporting a yarn-package in driving contact with saiddrum, a hooked pawl connected to said bobbin-hanger for pivoting it toraise the package from said drum, an oscillating rockerelementengageable with said pawl to cause the latter to pivot the bobbin-hangerand raise the package, a pivoted breakage-lever normally held inactiveby the yarn feeding to the package, means connecting said breakage-leverwith the pawl to rock it into position to be engaged by saidrocker-element to pivot the bobbin-hanger and raise the package from thedrum, and normally inactive means energized by the raising of thebobbin-hanger to cause it to move said pawl out of range of saidrocker-element, said pawhmoving means being released to allow the pawlto return to initial relationship when the bobbin-hanger is lowered toplace the yarn-package in driving contact with the driving drum.

5. In a winding mechanism embodying a rotary driving drum and arotatable cop-holder, the combination of a pivoted arm for supportingsaid cop-holder to adapt it to recede from the driving drum, a rockableshaft for pivotally mounting said arm at one end, a hooked pawl, meansfor pivotally suspending said pawl on the opposite side of said shaftfrom said arm, means connecting said pawl with said arm to rock itsforward end upwardly for raising the cop-holder away from the drivingdrum, a breakage-lever having one end fastened to the pawl for rockingit and its opposite end positioned for contact with the yarn feeding toa package wound on the cop-holder, and a continuously-oscillatingrocker-element engageable with the hooked pawl to draw it downwardly forpivoting the arm upwardly, said breakage-lever acting when released byfailure of the feeding yarn to rock the pawl into position forengagement by said rocker-element.

6. In a winding mechanism embodying a rotary driving drum and arotatable cop-holder on which a bobbin may be wound, a bobbin-hangerpivoted at one end and having means at its opposite end for rotatablysupporting said cop-holder, a hooked pawl connected to said bobbinhangeron the opposite side of its pivotal axis from said cop-holder, acontinuously-oscillated rocker-element engageable with said pawl to drawit downwardlyand swing said bobbin-hanger upwardly to raise thecop-holder away from the driving drum, a breakage-lever pivoted on thesame axis with said pawl and connected thereto to rock the pawl intoposition for engagement by said rockerelement, said breakage-leverhaving an arm extending forwardly from said pawl with its end positionedto bear against the yarn feeding to a bobbin wound on the copholder,detent-means for locking the bobbin-hanger in elevated position, amanually-operable finger-lever extending forwardly along saidbobbin-hanger with its end in position to be grasped, and means forconnecting said finger-lever to release said detent-means to cause thebobbin-hanger to descend for moving the cop-holder toward said drivingdrum.

7. In a winding mechanism embodying a rotary driving drum and arotatable cop-holder, a stationary bearing member mounted at the rear ofsaid driving drum, a shaft rockably journaled in said bearing member, abobbin-hanger fastened to said shaft to adapt it to pivot therewith, acop-holder rotatably mounted at the forward end of said bobbin-hanger, asecond shaft mounted to rock in a bearing in a member fast on saidfirst-mentioned shaft and extending rearwardly from said bobbin-hanger,a hooked pawl fast on said second shaft, a continuouslyoscillatedrocker-element engageable with said hooked pawl to draw it down and rockthe first-named shaft to pivot the bobbin-hanger and lift the cop-holderaway from the driving drum, a breakage-lever fixedly connected to saidsecond shaft carrying the hooked pawl and having an arm extendingforwardly therefrom for engagement with the yarn feeding to a packagebeing wound on said cop-holder, and a weight adjustable on saidbreakagelever on the opposite side of its pivot from itsforwardlyextending arm, said weight adapted to swing the breakage leverarm upwardly upon its release from the yarn to rock said hooked pawlinto position to be engaged by the oscillating hooked element whereby tocause the pawl to pivot the bobbin-hanger for raising the cop-holderaway from the driving drum.

8. In a winding mechanism comprising a rotary driving drum and abobbin-hanger having a pivoted arm with means on said arm for supportinga core for rotation by the drum to wind a package thereon, a shaft onwhich said arm is pivoted, a second shaft journaled in hearings in anextension of said arm on the opposite side of its pivotal axis from thecore-supporting means, a pawl fast on said second shaft and dependingtherefrom with a hook at its end, an oscillating rocker-element havingmeans engageable with the hook on said pawl to draw the latterdownwardly and swing the bobbin-hanger'arm upwardly for removing thepackage from contact with the driving drum, detent-means for holding thebobbin-hanger in elevated position with the package removed from contactwith the driving drum, a breakage-lever fast on said second shaft andextending forwardly therefrom with means at its end engageable with ayarn feeding to the package, means for pivoting said breakage-lever uponits release from the yarn to rotate said second shaft and carry the pawlinto position for engagement by said rocker-element, a normallyinoperative spring for rocking said pawl, means for loading said springduring the rocking of the pawl into the range of action of therocker-element, said spring operating when loaded to swing the pawl outof range of the rocker-element when released therefrom to reset thestopping mechanism after the package has been raised from the drivingdrum, and manually-operable means for releasing the detent-means tocause the bobbinhanger to swing down into position to restart thewinding on the core.

9. In a winding mechanism comprising a driving drum and a bobbin-hangerfor supporting a core for contact with said driving drum to wind apackage thereon, means for pivotally mounting said bobbin-hanger toadapt the bobbin to swing away from the drum to arrest the windingoperation, said bobbin-hanger havingian arm extending rearwardly fromits pivotal axis, a rock-shaft journaled in said arm, a pawl fast onsaid rock-shaft and depending therefrom with a hook at its end, acontinuously-oscillated rocker-element engageable with the hook on saidpawl to draw the latter downwardly and swing the bobbin- -hangerupwardly to raise the package off from the driving drum, abreakage-lever having a hub fast on said rockshaft and extendingforwardly therefrom with means at its end engageable with the yarnfeeding to the bobbin, means for swinging said breakage-lever upwardlyupon its release from the yarn to rotate said rock-shaft and therebyswing the pawl into position to be engaged by said rocker-element, ahelical spring surrounding the shaft on which the pawl is mounted andhaving two projecting legs with one leg engaging said pawl, and meansengageable by the other legof the spring to energize it when the pawl isdrawn downwardly by engagement with the rocker-element, said spring whenenergized acting to shift the pawl out of range of the rocker-elementwhen released thereby to reset the stopping mechanism after thepackagehas been raised off from the driving drum.

10. In a winding mechanism comprising a rotary driving drum, a shaftjournaled in bearings spaced from said drum, a bobbin-hanger fast onsaid shaft with its arm extending forwardly therefrom, means at theforward end of said arm for rotatably supporting a core in contact withthe drum to wind a yarn package thereon, a member fast on said shaft andextending rearwardly therefrom, a second shaft rockably journaled in abearing in said extension member, a pawl fast on said second shaft anddepending therefrom with a hook at its end, a continuously oscillatedrocker-element having means engageable with the hook on the pawl to drawit downwardly and rotate the first-named shaft to swing thebobbin-hanger upwardly for raising the package off from the drum, abreakage-lever fast on the second shaft and extending forwardlytherefrom to engage a yarn strand feeding to the package, means forraising said breakage-lever upon its release from the yarn to rotate thesecond shaft and swing the pawl into position for engagement by therocker-element to raise the bobbin-hanger, detent-means for retainingthe bobbin-hanger in raised position, and a normally inactive springenergized during the raising of the bobbin-hanger as thepawl is drawndownwardly by the rocker-element, said spring acting when energized toshift the pawl out of range of the rocker-element and reset thebreakage-lever in operative relationship for engaging the yarn.

11. In a winding machine comprising a rotary driving drum and arotatable cop-holder, a bearing-bracket fixedly attachable to theframework of the winding machine, a shaft journaled in saidbearing-bracket, an arm fixedly mounted on the shaft to adapt it topivot with said shaft, means for mounting the cop-holder on the forwardend of said arm, means extending rearwardly from said arm on theopposite side of its pivotal axis from the cop-holder, a second shaftrotatably mounted in said rearward extension, a hooked pawl fast on thesecond shaft, a continuously-oscillated rocker-element adapted to engagethe hooked pawl to draw it downwardly and swing the arm upwardly, abreakage-lever fast on the second shaft carrying the pawl and extendingforwardly therefrom for engagement with the yarn delivering to thepackage, said breakage-lever having an arm extending rearwardly from itsmounting on said second shaft, a weight adjustable on said rearward arm,means for fastening said weight in adjusted position on said rearwardarm to adapt it to swing the forward arm upwardly upon its release fromthe yarn and swing the hooked pawl into position for named shaftcarrying the arm, said collar having a detentshoulder, a detent-pawlpivoted on, the bracket and engageable with the shoulder on the collarto lock the arm in its elevated position, resilient means for actuatingsaid pawl, and a lever carried by the arm and movable to rock thepawland release it from the collar to permit the arm to swing downwardlytoward the driving drum.

12. For attachment to a winding or like machine comprising a drivingdrum journaled in the framework of the machine, a bearing bracketattachable to said framework of the machine, a shaft journaled in saidbearing bracket, an arm'secured fast on said shaft to swing upwardly byrotary movement of the shaft, a cop-holder mounted on said arm to adaptit to move toward and away from the driving drum, a member fast on theshaft and projecting rearwardly therefrom, a second shaft mounted in ahearing on said member, a pawl fast on the second shaft and dependingtherefrom with a hook at its end, a rockerelement having meansengageable with the hook on said pawl to draw the latter downwardly andturn the firstnamed shaft to swing the arm upwardly, a breakageleverfast on the second shaft and extending forwardly therefrom forengagement with the yarn feeding to the package wound on the cop-holder,said breakage-lever having a rearwardly-extending arm, a weightadjustable on said rearward arm for balancing the breakage-lever torelieve its pressure on the yarn engaging therewith, said breakage-leveracting when moved by the weight to swing the pawl into position forengagement by the rockerelement, a detent-member carried by thefirst-named shaft, a pawl engageable with said detent-member to lock thearm in raised position, and a manually-operable lever pivoted to the armand extending forwardly therefrom with means at its pivoted end to rockthe detent-pawl for engaging it from the detent-member to permit the armto swing downwardly and carry the cop-holder toward the driving drum.

13. In a winding or like machine comprising a rotary driving drum, thecombination of a bearing bracket adapted to be supported from the frameof said machine, a shaft rotatable in a bearing on said bracket, an armfixedly mounted on said shaft, means at the forward end of the arm forrotatably mounting a cop-holder, a breakage-lever pivotally mounted onan extension of the arm at the opposite side of the shaft from thecop-holder and engageable with the yarn feeding to the cop holder, arockable pawl connected to said breakage-lever and having a hook at itsend, a rocker-element engageable with said pawl when the latter isrocked by swinging movement of the breakage-lever to draw the pawldownwardly and raise the arm carrying the cop-holder, a collar fast onthe shaft with said arm and having a detent-shoulder, a shaft rockablymounted in a bearing on the bracket and formed with a crank-arm, a pawlcarried by said last-named shaft and engageable with the detent-shoulderon the collar, a manually-operated lever pivoted on the first-narnedshaft and extending forwardly at the side of the arm, and means on saidlever engageable with the crank-arm on the lastnamed shaft for rockingthe pawl to release it from the detent-collar.

References Cited in the file of this patent UNITED STATES PATENTS952,015 McKean Mar. 15, 1910 1,644,946 Peterson Oct. 11, 1927 1,958,060McKean May 8, 1934 2,365,701 Higgins Dec. 26, 1944

